The Super Bowl, because everyone gathers to watch a big game of football
forces: forces applied to an object in opposite directions that are not equal in size. Unbalanced forces result in a change in motion. friction: the force that opposes the motion or tendency toward motion of two objects that are in contact.
Answer:
Part a)
charge on each sphere is -1.95 micro coulomb
Part b)
For first sphere
excess charge
For second sphere
excess charge
For third sphere
absent charge
For third sphere
absent charge
Explanation:
Part a)
Since all the spheres are of identical size so the total charge of the sphere will divide equally on them
So we have
So charge on each sphere is -1.95 micro coulomb
Part b)
For first sphere
initial charge = 2.2 micro coulomb
final charge = -1.95 micro coulomb
excess charge = -1.95 - 2.2 = -4.15 micro coulomb
Q = Ne
For second sphere
initial charge = 4.2 micro coulomb
final charge = -1.95 micro coulomb
excess charge = -1.95 - 4.2 = -6.15 micro coulomb
Q = Ne
For third sphere
initial charge = -7.4 micro coulomb
final charge = -1.95 micro coulomb
absent charge = -1.95 + 7.4 = 5.45 micro coulomb
Q = Ne
For third sphere
initial charge = -6.8 micro coulomb
final charge = -1.95 micro coulomb
absent charge = -1.95 + 6.8 = 4.85 micro coulomb
Q = Ne
Answer:
1. realizing of arrow
2. kicking of ball
3. punching the punching bag
Answer: Option D is Correct!
In an orbiting station, after one foot pushes off there isn't a force to bring the astronaut back to the "floor" for the next step
Explanation:
Imagine how hard it is to jump as high as 6 meters on earth. This is as a result of the earth's gravitational pull, also known as the force of gravity, which is the force by which the earth attracts objects to towards it's center. This force of gravity accounts for the weight of a body, according to the equation below:
w=mg
Where;
W= weight of body
m= mass of body
g= acceleration due to gravity
But in space, the gravitational pull rule doest not apply. Because the moon's gravity is 1/6 of of the Earth, this leads to weightlessness in space. As a result, whenever an astronaut tries to walk normally inside an orbiting space station, there isn't enough gravitational pull to allow that. He gets thrown up due to weightlessness in space.